Clark Tanks poly water tanks feature extra structural ribs for maximum wall strength. These reinforcements keep the tank’s
shape under extreme water pressure and protect against bulging, ensuring your tank maintains its integrity
for decades.

Clark Tanks are built with tapered walls and an extra-thick base, meaning the lower section is significantly
stronger where water pressure is greatest, gradually reducing in thickness towards the top. This intelligent
engineering ensures unbeatable strength at the foundation of the tank while optimising material use for a
lighter, more manageable product.

Clark Tanks proudly stands apart as the only manufacturer in the marketplace offering a 50,050-litre poly water tank — the CT11000 model. This massive tank provides exceptional water storage capacity for farms, commercial sites and properties requiring large-scale water management.

For hassle-free transport and installation, most of our tanks come with moulded lifting lugs built directly
into the design. These strong, integrated lift points make positioning your tank safer and more efficient,
protecting it from damage during handling.

Our raised flat manhole design not only provides a safe, stable surface for maintenance but also positions
the inlet higher, keeping the strainer well above the water line. This smart feature reduces the chance of
contaminants coming into contact with your stored rainwater, ensuring cleaner, safer water for your home or property.

Finally, our precision-engineered roof design features a slight dome allowing rainwater to run off efficiently
and preventing pooling. This not only reduces structural stress but also helps keep your water clean and free from algae growth.

✓ Manufactured from high quality food grade UV stabilised polyethylene (No BPA).
✓ Will not change the taste or quality of your water.
✓ Polyethylene tanks do not rust or corrode.
✓ Can be linked together for even greater storage capacity.
✓ Superior design with tapered walls (above 5,000 litre).
✓ One piece construction, no vertical side seams (apart from our slimline range).
✓ Proven history of long term use in the most demanding rural and urban applications.
✓ Come with quality Watermarked Fittings as standard